When I was in college my art professors asked me who my favorite artists were - I said I liked Renaissance artists and Norman Rockwell. They had snooty looks on their faces and said Rockwell was considered an illustrator - not really an artist. They were both big libs for sure - and they weren’t that talented. They wish they were as good as Rockwell.
As an aside. I like Ron Paul - and have always thought he looks like he came out of a Rockwell image.
The American Illustrator movement from ~1860-1970 has been totally dismissed by the art historians in favor of anti-art: